Cita APA (7th ed.)

Boberg, K., Bergquist, A., Mitchell, S., Pares, A., Rosina, F., Broomé, U., . . . Schrumpf, E. (2002). Cholangiocarcinoma in primary sclerosing cholangitis: Risk factors and clinical presentation.

Cita Chicago (17th ed.)

Boberg, K., et al. Cholangiocarcinoma in Primary Sclerosing Cholangitis: Risk Factors and Clinical Presentation. 2002.

Cita MLA (9th ed.)

Boberg, K., et al. Cholangiocarcinoma in Primary Sclerosing Cholangitis: Risk Factors and Clinical Presentation. 2002.